The people you voted for aren’t pro-choice. Therefore, what you personally believe does not matter. The Maine GOP’s official position this year on abortion was that it should be banned, and they directly stated in their platform statement that they believe marriage is between a man and a woman. Regardless of what you believe, the people you voted for do believe that, and you tried to put them in a position where they can act on those beliefs because your priorities lie elsewhere. You may as well just be pro-life; for the purposes of an election, the result is the same.